Army tm 9-3990-260-14&p, fig 7-1
A washer having a centrally located hole with a solid or laminated cross-section and two flat parallel bearing surfaces. The hole must be 75 percent or less than the largest dimension and the bearing surface finish is greater than 32 microinch (0.8 micrometer). The thickness cannot exceed 25 percent of the largest outside dimension. When the largest outside dimension is less than 1/4 inch or 6mm, the thickness must be 0.006 inches (0.15mm) or greater and for items 1/4 inch (6mm) or larger, the thickness must be 0.016 inches (0.4mm) or greater. The maximum tolerance is applied to dimensions and used as a determining factor. Items with separable lamination use shim. For items fabricated from ceramic or electrically rated materials by specification or industry standards use insulator (1), washer. Excludes disk, valve, graphite impregnated and lubricated items.
Classification: Washers other than lock washers, iron or steel
NSN 6135-01-568-9107
NSN 5985-00-974-6360
NSN 5985-00-972-1965
NSN 5999-01-401-5322
NSN 7035-00-300-3208
NSN 4140-01-569-7183
NSN 6650-01-081-8801
NSN 5930-01-393-3581
NSN 5996-01-322-3927
NSN 5965-01-495-4242
NSN 6150-01-541-5415
NSN 6320-01-326-1316